nerdexam
IBM

C2090-930 · Question #45

Which statement is correct about the Reclassify node?

The correct answer is A. The Reclassify node automatically creates new nominal fields based on the values of one or. Option A is correct because the Reclassify node's primary function is to generate new nominal (categorical) fields by mapping the values of an existing categorical field to a new, user-defined set of categories - for example, turning city names into broader regional groups…

Data Preparation

Question

Which statement is correct about the Reclassify node?

Options

  • AThe Reclassify node automatically creates new nominal fields based on the values of one or
  • BThe Reclassify node enables the transformation from one set of categorical values to another.
  • CThe Reclassify node can be used to reduce the number of fields (columns) in the data.
  • DThe Reclassify node can be used to reduce the number of records (rows) in the data.

How the community answered

(34 responses)
  • A
    85% (29)
  • B
    3% (1)
  • C
    3% (1)
  • D
    9% (3)

Explanation

Option A is correct because the Reclassify node's primary function is to generate new nominal (categorical) fields by mapping the values of an existing categorical field to a new, user-defined set of categories - for example, turning city names into broader regional groups. Option B is a tempting distractor because reclassification does involve changing categorical values, but B misses the key detail that the node specifically produces new nominal fields rather than simply converting values in place. Options C and D are clearly wrong because the Reclassify node operates on values within fields, not on the structure of the dataset - it neither removes columns (that's the Filter node) nor removes rows (that's the Select node).

Memory tip: Think "Reclassify = Rename categories into new nominal buckets." If the answer involves rows or columns being removed, it's always a different node.

Topics

#Reclassify node#categorical transformation#nominal fields#field operations

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